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Letters Panam. 77,540, ma May 5,1868.

IMPsovsD eternas-PIN.

ttt .stimule narra' tu in tten italia: atent mit mating parini the same. l

Be it known that I., EBENEznn Snaren, of Boston, in the county `of Suiolkand State of Massachusetts, have invented a new and improved device for retaining clothes or other fabricsv upon a line, which I term a Double-Fast Clothes-Pin; and I do declare that the following is n full, clear, and exact description -of the same,

reference being had to the accompanying drawings, making '-a part of-this speciication, inv which-- Figurell represents a perspective view of my'iinished clothesfpin, v i p Figure 2, another ofthe same in section, as it appearspreviousto being fastened together; and

Figure 3 a clothes-pin long known, and at thepresent time in common Vuse. 4

Many,ingeniously-constructed-clothes-pins have been made, intended to lsecure-fabrics upon aline with greater certainty than is realized vwith, o r by the bld-style pin represented at iig,'3. v ATha-t there is need of a more reliable clothes-holding device isindicated by repeated attempts at improvementv thereonl by mean's of springs, hinges, levers, &c.,' but,as said old-style pin is generally admitted to be all thatcanbe desired, except in its liability to split, and to be worked from aline by the wind, and as 'proposed substitutesheretoforeoi'ered are'equally subject to accidental removal, it follows, that no substantial advance in the-'right'drection has yet been attained.

The frequent failure ofthe said old-style pin to remain' on a line is principally-due to thefact that it can bring but one fasteningfcapacity (that of an easily-displaced friction-grasp of v 'thel legs) to bear upon a garment to ke'ep itin place and as the aforesaid substitutes, whether differing more'or less in form of'construction or prin 'cp'lenof action, are also made to depend wholly upon a single mode of retention,"they are consequently unsuccessful in like manner. s l l Referring to ,the drawings, iig. 1,. A A', B B', CC represent the pin `as finished in duplicatel parts, and securely fastened together by rivets or otherwise. That portion marked A B ist-the head or solid end of the pin. A B (being the parts between C C and the head).arethe legs, obliquelyiconve'rging towards the head, so as to form a ,:r,raduallytape1'ing` liuc-space, which, as the pin is thrust downward','will, in some -part of its length, be narrow enough to meet and pressagainst the sides of a garmenQ-holding it witha force that'maybe termed a friction-grasp. 7 Near the entering end of the line-space are clamping-'projections or teeth C C', as shown, which are, by elastic pressure, kept in forcible. contact with each other at their points, by' the act of .fastening together the head-portions A and B, the unitingV surfacesof which are bevelled, (as shown in iig. 2,) expressly to prodncc such result at and upon the said teeth C .Cif i v, f I v v" The points of contact of teeth C C are reachedby argentle slopein both directions, that is to say, from the lends of the legs and from the widest part ofthe line-space; to permit the line, Aits., to bc entered and-withdrawn with little friction; The' lin'espalceslopef however, ispurpos any unintentional displacement ofthe pin fromal line.

y Almost any close-grained' wood will be suitable to the manufacture of my clothes-pins, but they mayalso be made of any natural or artificial material, it'possessed of suihcicnt elasti'city,'.and unobj(actionable in-other respects.

11n general contour, the headfand apart of lthe"linespace o`` my device 'maybe described as-resemL Vbling the old-style pin, (gB/g) yet, unlike that pin, mine cannot split, .and will, with increased power, resist other ordinary sources of displacement; still further unlike it, forcibly together, placed near the open end of the pin. Y

I am aware that clothes-pins have beenvheretofore made with teeth-or protuberances, but their object seems tobe simply to form, by their upper sides, the walls of a recess for the line.

The novelty of' my invention mainly consists in thebevel given to the innersurfaces of the head-portions A and B.- These surfaces are first brought temporarily together by any convenient means, -then permanently .secured in immediate contact, (syby rivets.) This act of riveting the head also has the effect to draw theyother inner parts of the pin 'towards-each other, pressing into close contact the pointsof teeth C C with elastic force Thepressure exertcdlat points C C has two results, That which for the sake of distinction will call the first clyir'nade less inclined, in' order to guai i against the legs of mine are armed with teeth pressed mas and for the purpose specified.

( adminor) result of seid pressure, is that it tends to keep o. pin -in exact positionne placed on a line, by operating as an incidentnlsupport to the friction-grasp fastening of the legs above g in other words,'the frctiongrasp ofthe legs and the pressure-grasp ofthe teeth are mutual auxiliaries.A The second (und principal) result attained bythispressure is that it compelsthe points of teeth C C to impihge upon a. fabric, andl forcibly hold the .same-"In brief, the said induced action "nt and of the points C C aids one fastening, und forms by itself another. i

Having thus described my invention, I make no claim to so much of it as n iay be similar to the oid-style pin, either as to itsform or operation rbut v WhatI do cluimand desire to secure by Letters Patent, is

`The bevelled contact-surfaces of-the parts A and B, as shown at iig. A2, in combination with the teeth C C',

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

' EBENEZER SEAVER.

Witnesses: v J.- H. ADAMS., M, S. G. Wmnei 

